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If the line 2 x+3 y+k=0 is a tangtnt to ...

If the line `2 x+3 y+k=0` is a tangtnt to the circle `x^(2)+y^(2)-6 x-8 y=0,` then a value of `k=`

A

`5 sqrt(13)-18`

B

7

C

`5+8 sqrt(13)`

D

none of these

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The correct Answer is:
A
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